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. Author manuscript; available in PMC: 2020 Oct 22.
Published in final edited form as: Astrophys J. 2019 Oct 14;884(1):75. doi: 10.3847/1538-4357/ab3be8

Table 4.

Model “tAp.all”

Variable Estimate Standard Error t Value Pr(>|t|)  Confidence (1 − α) in Estimated Coefficient
(Intercept) −4.89E−16 4.15E−02 0.000 1
acet(S0X) 1.01E+00 6.38E−02 15.826 <2e−16 ***
acet(Tstar.K) 9.00E−01 1.39E−01 6.487 1.23E−07 ***
acet(orb.period.Earthdays) 9.54E−01 1.26E−01 7.582 4.07E−09 ***
acet(rotation.XEarth.day) 9.30E−01 1.21E−01 7.66 3.20E−09 ***
acet(eccentricity) 9.66E−01 3.64E−01 2.651 0.011642 *
acet(Land.fraction) 8.23E−01 2.67E−01 3.079 0.003846 **
acet(log10CO2.mb) 1.03E+00 2.46E−01 4.179 0.000165 ***
acet(log10CH4.mb) 8.90E−01 1.43E−01 6.237 2.69E−07 ***
acet(obliquity.degrees) 8.89E−01 2.36E−01 3.772 0.000552 ***

Note. Generalized additive model (GAM) fit to transforms in Ap, combining ACE transforms for the different stellar types, predicting the ACE transforms of Bond albedo. Residual standard error: 0.287 on 38 degrees of freedom. Multiple R-squared: 0.935. Adjusted R-squared: 0.919. AIC: 27.287.